From 3de3dbe7c13210171ba8411e36b409a2c29c7415 Mon Sep 17 00:00:00 2001 From: Kangjie Lu Date: Tue, 19 Mar 2019 12:34:06 -0500 Subject: usb: u132-hcd: fix potential NULL pointer dereference In case create_singlethread_workqueue fails, the fix notifies callers the error to avoid potential NULL pointer dereferences. Signed-off-by: Kangjie Lu Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/u132-hcd.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/usb/host/u132-hcd.c') diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c index 934584f0a20a..e29165027e8b 100644 --- a/drivers/usb/host/u132-hcd.c +++ b/drivers/usb/host/u132-hcd.c @@ -3203,6 +3203,8 @@ static int __init u132_hcd_init(void) return -ENODEV; printk(KERN_INFO "driver %s\n", hcd_name); workqueue = create_singlethread_workqueue("u132"); + if (!workqueue) + return -ENOMEM; retval = platform_driver_register(&u132_platform_driver); return retval; } -- cgit v1.2.3